Experimental analysis of the influence of high-frequency ripple currents on dynamic charge acceptance in lead-acid batteries

This paper presents the results of a series of tests to determine the influence of high-frequency injected ripple currents on the Dynamic Charge Acceptance (DCA) performance of lead-acid batteries. A wide-bandwidth battery model is described, this being a hybrid of the standard Randles model and a high-frequency model previously described in literature. A bespoke test procedure is described, based on the existing DCA Short Test profile. The results demonstrate that the injection of ripple currents can significantly improve charge acceptance.